Past Diagnostic Test Mode
READING DTCs PROCEDURE IN PAST DIAGNOSTIC TEST MODEPast diagnostic test mode
1. Start present diagnostic test mode. (Refer to AIR CONDITIONER SYSTEM ON-BOARD DIAGNOSIS, Reading DTCs Procedure, Present diagnostic test mode.)
2. Press the A/C switch and start past diagnostic test mode.
NOTE: "(PAST)" is indicated on the SST (49 T088 001) and "A/C" is indicated on the information display only in past diagnostic test mode.
3. If the system is normal, SYSTEM PASSED. (NO DTCS AVAILABLE) will be indicated. If any DTC is indicated, follow the appropriate DTC troubleshooting chart.
4. After completion of repairs, clear DTCs.